1. Port Dolphins
| Dolphin Name | Location | Function | Material | Dimensions (m) | Note |
|---|---|---|---|---|---|
| East Breakwater Dolphin | Eastern breakwater head | Mooring assistance | Concrete | 8×8 | Protected area, fendered |
| West Approach Dolphin | Western channel entrance | Navigation aid | Steel pile | 6×6 | Lighted marker, radar reflector |
| Central Channel Dolphin | 39°09’35″N 127°26’20″E | Tanker mooring | Reinforced concrete | 10×10 | Fitted with quick-release hooks, rated 50t |
| Inner Harbor Dolphin A | Fishery basin entrance | Small craft mooring | Timber piles | 5×5 | Limited to vessels <50m LOA, no night ops |
| Oil Terminal Dolphin | 39°10’05″N 127°25’45″E | Product transfer | Steel jacket | 12×12 | Class 1 Div 2 hazardous area |
2. Mooring Buoys
| Buoy ID | Position | Type | Max Vessel Size | Mooring Lines | Usage | Maintenance Cycle | Light Characteristic |
|---|---|---|---|---|---|---|---|
| MB-1 | 39°09’30″N 127°26’15″E | Single-point mooring | 5,000 DWT | 4×75mm nylon | Bulk cargo transfer | Annual inspection | Fl.G 4s |
| MB-2 | 39°09’45″N 127°26’30″E | Multi-leg mooring | 10,000 DWT | 6×80mm polyester | Fuel bunkering | Bi-annual inspection | Fl.R 6s |
| MB-3 | 39°09’50″N 127°26’40″E | Yokohama-type | 3,000 DWT | 4×65mm steel wire | Naval auxiliary vessels | Restricted access | Q.W |
| MB-4 | 39°10’10″N 127°25’50″E | CALM buoy | 15,000 DWT | 6×90mm chain | Crude oil transfer | Quarterly inspection | Fl.Y 8s |
3. Piers
| Pier Name | Length (m) | Depth (m) | Structure Type | Primary Use | Year Built | Deck Strength (t/m²) | Fendering System |
|---|---|---|---|---|---|---|---|
| Central Pier | 320 | 8.5 | Concrete deck on piles | General cargo | 1985 | 5 | D-type rubber |
| Naval Pier | 280 | 9.0 | Reinforced concrete | Military vessels | 1978 | 10 | Cell fenders |
| Coal Transfer Pier | 150 | 7.8 | Steel trestle | Coal transshipment | 1992 | 8 | Timber rubbing strips |
| Passenger Pier | 120 | 6.0 | Concrete pontoon | Ferry operations | 2005 | 3 | Inflatable fenders |
4. Berths
| Terminal Name | Berth Name | Length (m) | Depth (m) | DWT Capacity | Max LoA (m) | Berth Type | Shore Cranes | Safe Working Load (SWL) | Main Cargo | Note |
|---|---|---|---|---|---|---|---|---|---|---|
| Wonsan General Cargo Terminal | Berth 1 | 150 | 7.5 | 10,000 | 140 | Quay wall | 2 × 10-ton | 10 tons | Breakbulk | Conventional handling, 24h ops |
| Wonsan General Cargo Terminal | Berth 2 | 180 | 8.0 | 15,000 | 160 | Quay wall | 1 × 25-ton | 25 tons | Project cargo | Heavy lift capability, beam 35m |
| Wonsan Bulk Terminal | Coal Berth | 200 | 9.0 | 20,000 | 180 | Open wharf | Grab unloader | N/A | Coal | Conveyor system 500t/h |
| Wonsan Container Terminal | CT-1 | 220 | 10.0 | 25,000 | 200 | Dolphin-type | 2 × 40-ton gantry | 40 tons | Containers | Limited operations, 150 TEU/day |
| Wonsan Oil Terminal | OT-1 | 180 | 11.5 | 30,000 | 170 | Dolphin berth | Loading arms | N/A | Fuel oil | Firefighting system installed, 1000m³/h |
| Wonsan Grain Terminal | GT-1 | 160 | 8.5 | 15,000 | 150 | Quay wall | Bucket elevator | N/A | Grain | 200t/h capacity, silo storage |
5. Lighterages
| Lighterage Area | Max Draft (m) | Bottom Type | Transfer Capacity | Vessel Type | Anchorage Area (km²) | Current (kts) | Restrictions |
|---|---|---|---|---|---|---|---|
| Inner Harbor | 5.0 | Sandy | 500 tons/day | Barges | 0.8 | 0.5-1.0 | Daylight only |
| Roadstead | 6.5 | Mud | 1,000 tons/day | Lighter ships | 1.5 | 1.0-1.5 | Max wind 25kt |
| Eastern Lighterage Zone | 4.5 | Rocky | 300 tons/day | Fishing tenders | 0.3 | 0.3-0.8 | Local craft only |
| Western Transfer Zone | 7.0 | Clay | 800 tons/day | Coastal freighters | 1.2 | 0.8-1.2 | No hazardous cargo |
6. Wharves
| Wharf Name | Length (m) | Depth (m) | Structure | Usage | Note | Night Lighting | Security Level |
|---|---|---|---|---|---|---|---|
| Fishery Wharf | 350 | 6.0 | Timber deck | Fishing vessels | Ice plant available (50t/day) | Partial | Level 1 |
| Shipyard Wharf | 400 | 7.5 | Concrete | Ship repair | Two dry docks adjacent (15,000DWT) | Full | Level 3 |
| Grain Wharf | 120 | 6.5 | Concrete caisson | Agricultural products | Elevator capacity 200t/h | None | Level 1 |
| Naval Support Wharf | 300 | 8.0 | Reinforced concrete | Military logistics | Restricted area | Full | Level 4 |
Operational Notes:
- All depth measurements refer to chart datum (CD) based on Korean People’s Army Hydrographic Office surveys
- Military facilities have restricted access (3nm exclusion zone enforced)
- Container operations limited per UNSC Resolutions 2371 (2017) and 2397 (2017)
- Tidal range averages 0.5m (microtidal regime), max observed 1.2m during spring tides
- Port authority: Wonsan Port Management Bureau under Ministry of Land and Maritime Transport
- Mandatory pilotage for vessels >500 GT (DPRK Maritime Safety Regulation Article 24)
- Harbor working hours: 0800-1700 local time (extended to 2000 during harvest season)
- All petroleum operations require special permit from Ministry of Energy
Navigation Warnings:
- Uncharted obstructions reported near 39°09’25″N 127°26’10″E (NOTAM 2023-12, last verified 2024-03)
- Magnetic anomalies up to 5° deviation recorded in western basin (IHO S-57 ENC warning)
- Winter ice conditions may restrict operations (December-February, average thickness 20cm)
- Frequent small craft activity in fishing zones, particularly 0400-0800 local time
